Cita APA (7th ed.)

Rollins, J. (2007). Black order: A Sigma force novel. Harper.

Cita Chicago (17th ed.)

Rollins, James. Black Order: A Sigma Force Novel. New York: Harper, 2007.

Cita MLA (9th ed.)

Rollins, James. Black Order: A Sigma Force Novel. Harper, 2007.